Assignee
Inventors
- Jiro Chiba (23 patents)
- Takaji Shimosaka (2 patents)
- Kenji Mukai (32 patents)
- Shuji Taguchi (4 patents)
- Mineyuki Ishida (1 patents)
- Hitoshi Onoda (28 patents)
- Hiroshi Usui (61 patents)
- Tsuneo Manabe (23 patents)
US Patent 6287996 · Granted Sep 11, 2001